Viradouro Pia d'Austral et Boreal

Breeder
not recorded
Call name
Pia
Gender
Female
Date of birth
not recorded
Country of birth
France
Country of standing
Italy
Size
26 cm (10.2 in)
Weight
4.5 kg (9.9 lb)
Colour
White & Tan
Coat
Smooth
Breeding status
Active

Genetic indicators

The three figures are recalculated for the generations chosen.

COI — inbreeding

0%

No common ancestor over 5 generations.

AVK — distinct ancestors

96.8%

60 distinct ancestors out of 62 possible.

Pedigree completeness

100%

Complete pedigree over 5 generations.

Value for the breed's diversity

Average pedigree — rarer than 56% of the Jack Russells born in the last 15 years (since 2012)

How often its ancestors (over 6 generations) appear in the pedigrees of the 297 recent dogs: using dogs with a rare pedigree helps keep diversity in the breed. Over: 6 generations 8 generations 10 generations

How these figures are calculated

COI — Wright's formula: F = Σ (½)n₁+n₂+1 × (1 + FA), summed over every path through a common ancestor A. The number of generations must be fixed for two dogs to be comparable: a more complete pedigree mechanically raises the figure.

AVK — distinct ancestors divided by the theoretical number of ancestors. Over 5 generations there are 62 possible slots. 100% means no ancestor appears twice.

Completeness — the share of slots actually filled in. The AVK is misleading without it: a half-empty pedigree shows a low AVK even with no inbreeding at all, simply because data is missing.

Read more: how the COI is calculated

Pedigree

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Offspring and relatives

No offspring or siblings are recorded for this dog yet.